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Arthur J. Gallagher & Co.

AJG
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000354190

In the last 90 days, Arthur J. Gallagher & Co. insiders filed 0 open-market purchases and 4 sales; 1,295 institutions reported holding it in 13F filings for Q2 2026, worth $54.7B in total; no superinvestor holds it.

13F holders, Q4 2023

Institutional positions in Arthur J. Gallagher & Co. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,082
+100 vs. Q3 2023
Shares held
186.4M
+1.48M (+0.8%) vs. Q3 2023
Total value
$41.9B
−$259.2M (−0.6%) vs. Q3 2023
New holders
163
413 more added
Sold out
63
356 more reduced

17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AJG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 1,082 institutions
Q1 2021: 732 institutionsQ2 2021: 779 institutionsQ3 2021: 775 institutionsQ4 2021: 854 institutionsQ1 2022: 817 institutionsQ2 2022: 823 institutionsQ3 2022: 865 institutionsQ4 2022: 921 institutionsQ1 2023: 951 institutionsQ2 2023: 976 institutionsQ3 2023: 999 institutionsQ4 2023: 1,082 institutionsQ1 2024: 1,130 institutionsQ2 2024: 1,153 institutionsQ3 2024: 1,203 institutionsQ4 2024: 1,325 institutionsQ1 2025: 1,359 institutionsQ2 2025: 1,379 institutionsQ3 2025: 1,341 institutionsQ4 2025: 1,299 institutionsQ1 2026: 1,248 institutionsQ2 2026: 1,295 institutions
Value heldQ4 2023: $41.9B
Q1 2021: $20.6BQ2 2021: $24.6BQ3 2021: $26.3BQ4 2021: $30.1BQ1 2022: $31.0BQ2 2022: $29.1BQ3 2022: $31.2BQ4 2022: $34.1BQ1 2023: $34.7BQ2 2023: $39.9BQ3 2023: $42.3BQ4 2023: $41.9BQ1 2024: $46.5BQ2 2024: $49.1BQ3 2024: $52.8BQ4 2024: $65.9BQ1 2025: $79.0BQ2 2025: $72.9BQ3 2025: $69.7BQ4 2025: $60.6BQ1 2026: $49.7BQ2 2026: $54.7B
Institutions holding AJG and their total value by quarter
QuarterHoldersValue
Q2 20261,295$54.7B
Q1 20261,248$49.7B
Q4 20251,299$60.6B
Q3 20251,341$69.7B
Q2 20251,379$72.9B
Q1 20251,359$79.0B
Q4 20241,325$65.9B
Q3 20241,203$52.8B
Q2 20241,153$49.1B
Q1 20241,130$46.5B
Q4 20231,082$41.9B
Q3 2023999$42.3B
Q2 2023976$39.9B
Q1 2023951$34.7B
Q4 2022921$34.1B
Q3 2022865$31.2B
Q2 2022823$29.1B
Q1 2022817$31.0B
Q4 2021854$30.1B
Q3 2021775$26.3B
Q2 2021779$24.6B
Q1 2021732$20.6B

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q3 2023.

Institutions holding AJG in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Fund Management at Engine No. 1 LLC0$00.00%−3,082−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−2,791−100.0%Sold out
BBR Partners, LLC0$00.00%−2,620−100.0%Sold out
Lavaca Capital LLC0$00.00%−2,494−100.0%Sold out
Inceptionr LLC0$00.00%−2,299−100.0%Sold out
Stokes Family Office, LLC0$00.00%−2,224−100.0%Sold out
Syntal Capital Partners, LLC0$00.00%−2,132−100.0%Sold out
Eastern Bank0$00.00%−1,535−100.0%Sold out
Pinkerton Retirement Specialists, LLC0$00.00%−1,221−100.0%Sold out
StoneX Group Inc.0$00.00%−1,153−100.0%Sold out
Guardian Wealth Advisors, LLC0$00.00%−1,125−100.0%Sold out
Donaldson Capital Management, LLC0$00.00%−1,079−100.0%Sold out
Seven Eight Capital, LP0$00.00%−1,037−100.0%Sold out
Independent Wealth Network Inc.0$00.00%−1,025−100.0%Sold out
Aspiriant, LLC0$00.00%−968−100.0%Sold out
Childress Capital Advisors, LLC0$00.00%−963−100.0%Sold out
BCJ Capital Management, LLC0$00.00%−955−100.0%Sold out
Diametric Capital, LP0$00.00%−948−100.0%Sold out
Altfest L J & Co Inc0$00.00%−927−100.0%Sold out
Cognios Beta Neutral Large Cap Fund, LP0$00.00%−918−100.0%Sold out
Legacy Financial Advisors, Inc.0$00.00%−916−100.0%Sold out
KC Investment Advisors, LLC0$00.00%−895−100.0%Sold out
Meeder Asset Management Inc0$00.00%−715−100.0%Sold out
PFG Private Wealth Management, LLC0$00.00%−647−100.0%Sold out
Certified Advisory Corp0$00.00%−374−100.0%Sold out
Hibernia Wealth Partners, LLC0$00.00%−365−100.0%Sold out
Headinvest, LLC0$00.00%−300−100.0%Sold out
Milestone Investment Advisors LLC0$00.00%−197−100.0%Sold out
Riverview Trust Co0$00.00%−197−100.0%Sold out
Twin Tree Management, LP0$00.00%−119−100.0%Sold out
Cary Street Partner Investment Advisory LLC0$00.00%−106−100.0%Sold out
Earnest Partners LLC0$00.00%−74−100.0%Sold out
WR Wealth Planners, LLC0$00.00%−61−100.0%Sold out
Atlantic Trust, LLC0$00.00%−59−100.0%Sold out
Front Row Advisors LLC0$00.00%−52−100.0%Sold out
Baker Avenue Asset Management, LP0$00.00%−34−100.0%Sold out
Johnson Financial Group, Inc.0$00.00%−31−100.0%Sold out
Western Pacific Wealth Management, LP0$00.00%−20−100.0%Sold out
Glass Jacobson Investment Advisors llc0$00.00%−9−100.0%Sold out
Concord Wealth Partners0$00.00%−9−100.0%Sold out
NewSquare Capital LLC0$00.00%−6−100.0%Sold out
Independence Bank of Kentucky0$00.00%−6−100.0%Sold out
Centerpoint Advisors, LLC0$00.00%−6−100.0%Sold out
Oliver Lagore Vanvalin Investment Group0$00.00%−1−100.0%Sold out
Ironwood Investment Counsel, LLC0$00.00%−1,100−100.0%Sold out
Payden & Rygel Investment Group––––Not filed
Newport Capital Group, LLC––––Not filed
First Republic Investment Management, Inc.––––Not filed
Mastrapasqua Asset Management Inc––––Not filed
Pathstone Family Office, LLC––––Not filed
Old North State Trust, LLC––––Not filed
Advisor Partners II, LLC––––Not filed
Bishop Rock Capital, L.P.––––Not filed
Adelphi Capital LLP––––Not filed
Rothschild Investment Corp––––Not filed
Colony Group LLC––––Not filed
Gyroscope Capital Management Group, LLC––––Not filed
Comerica Securities,inc.––––Not filed
Column Capital Advisors, LLC––––Not filed
KB Financial Partners, LLC––––Not filed
Steward Financial Group LLC––––Not filed
Sutton Wealth Advisors Inc.––––Not filed